bash shell批量判断主机的死活

#!/bin/bash
echo "please input begin num: "
read begin_num

echo  "please input end num: "
read end_num

echo  "Test is begining...."

for i in `seq $begin_num $end_num`
do

export host=172.16.1.$i

c=`ping -c 10 $host |grep 'packet'|gawk -F "," '{print $3}'|gawk '{print $1}'|sed s/\%//`
    echo
    echo "$c% packet loss for $host"

if [ $c -lt 10 ];then
    echo "The host $host is lived "

else
    if [ $c -lt 50  ];then
    echo  "The host $host is edge of life and death "

   else
    echo  "The host $host is die"
    fi

fi

done

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